Instance Segmentation of Human Body Parts Using Deep Learning Yolov8 Model

Abstract

Image segmentation constitutes an essential initial stage in digital image processing, wherein the primary objective is to distinguish and separate meaningful objects from the background to facilitate more accurate analysis and recognition. In the context of human body detection, the precise identification and delineation of specific anatomical regions—such as the head, torso, and arms—is particularly important due to the distinct structural and functional characteristics of each part. Aim of the present study introduces a methodological approach and the development of a web-based segmentation system that leverages the YOLOv8 instance segmentation model to partition human body images into four key regions, enhancing both accuracy and usability in downstream applications. A total of 107 images, each manually annotated, were employed and systematically divided into training, validation, and testing datasets. Upon evaluating the model's performance, the highest mean Average Precision (mAP) achieved was 0.979 after 200 training epochs. Additionally, the model attained a precision of 0.914, a recall of 0.995, and an F1-score of 0.95. These results indicate that the proposed instance segmentation framework delivers robust accuracy and dependable performance in segmenting human body parts.

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Authors

  • Maya Silvi Lydia Departement of Computer Science, Universitas Sumatera Utara, Medan, 20155, Indonesia
  • Anandhini Medianty Nababan Departement of Computer Science, Universitas Sumatera Utara, Medan, 20155, Indonesia
  • Elviawaty Muisa Zamzami Departement of Computer Science, Universitas Sumatera Utara, Medan, 20155, Indonesia
  • Amru Khair Al Hakim Departement of Computer Science, Universitas Sumatera Utara, Medan, 20155, Indonesia
  • Desilia Selvida Computer Vision and Multimedia Laboratory, Universitas Sumatera Utara, Medan, 20155, Indonesia
  • Pauzi Ibrahim Nainggolan Computer Vision and Multimedia Laboratory, Universitas Sumatera Utara, Medan, 20155, Indonesia
  • Dhani Syahputra Bukit Departement of Public Health, Universitas Sumatera Utara, Medan, 20155, Indonesia
  • Lanova Dwi Arde M Departement of Public Health, Universitas Sumatera Utara, Medan, 20155, Indonesia
  • Rahmita Wirza O.K. Rahmat Departement of Computer Science and Information Technology, Universiti Putra Malaysia, Serdang 43400, Malaysia

DOI:

https://doi.org/10.31449/inf.v49i37.9832

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Published

12/25/2025

How to Cite

Lydia, M. S., Nababan, A. M., Zamzami, E. M., Al Hakim, A. K., Selvida, D., Nainggolan, P. I., … O.K. Rahmat, R. W. (2025). Instance Segmentation of Human Body Parts Using Deep Learning Yolov8 Model. Informatica, 49(37). https://doi.org/10.31449/inf.v49i37.9832